introduce pa_sink_input_get_relative_volume()

[pulseaudio] / src / pulsecore / sink-input.c

diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c
index 34217c86726f39db3479e1b9530686703094ef40..ae2c6f546c58c815974fd946c528c040fae5ed3f 100644 (file)
--- a/src/pulsecore/sink-input.c
+++ b/src/pulsecore/sink-input.c
@@ -6,7 +6,7 @@
 
   PulseAudio is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
-  by the Free Software Foundation; either version 2 of the License,
+  by the Free Software Foundation; either version 2.1 of the License,
   or (at your option) any later version.
 
   PulseAudio is distributed in the hope that it will be useful, but
@@ -158,7 +158,6 @@ int pa_sink_input_new(
     pa_return_val_if_fail(data->sink, -PA_ERR_NOENTITY);
     pa_return_val_if_fail(PA_SINK_IS_LINKED(pa_sink_get_state(data->sink)), -PA_ERR_BADSTATE);
     pa_return_val_if_fail(!data->sync_base || (data->sync_base->sink == data->sink && pa_sink_input_get_state(data->sync_base) == PA_SINK_INPUT_CORKED), -PA_ERR_INVALID);
-    pa_return_val_if_fail(!(flags & PA_SINK_INPUT_FAIL_ON_SUSPEND) || pa_sink_get_state(data->sink) != PA_SINK_SUSPENDED, -PA_ERR_BADSTATE);
 
     if (!data->sample_spec_is_set)
         data->sample_spec = data->sink->sample_spec;
@@ -228,6 +227,12 @@ int pa_sink_input_new(
     if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], data)) < 0)
         return r;
 
+    if ((flags & PA_SINK_INPUT_FAIL_ON_SUSPEND) &&
+        pa_sink_get_state(data->sink) == PA_SINK_SUSPENDED) {
+        pa_log_warn("Failed to create sink input: sink is suspended.");
+        return -PA_ERR_BADSTATE;
+    }
+
     if (pa_idxset_size(data->sink->inputs) >= PA_MAX_INPUTS_PER_SINK) {
         pa_log_warn("Failed to create sink input: too many inputs per sink.");
         return -PA_ERR_TOOLARGE;
@@ -463,6 +468,8 @@ void pa_sink_input_unlink(pa_sink_input *i) {
         i->sink = NULL;
     }
 
+    pa_core_maybe_vacuum(i->core);
+
     pa_sink_input_unref(i);
 }
 
@@ -916,6 +923,28 @@ const pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i) {
     return &i->virtual_volume;
 }
 
+/* Called from main context */
+pa_cvolume *pa_sink_input_get_relative_volume(pa_sink_input *i, pa_cvolume *v) {
+    pa_sink_input_assert_ref(i);
+    pa_assert(v);
+    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+
+    *v = i->virtual_volume;
+
+    /* This always returns a relative volume, even in flat volume mode */
+
+    if (i->sink->flags & PA_SINK_FLAT_VOLUME) {
+        pa_cvolume sv;
+
+        sv = *pa_sink_get_volume(i->sink, FALSE);
+
+        pa_sw_cvolume_divide(v, v,
+                             pa_cvolume_remap(&sv, &i->sink->channel_map, &i->channel_map));
+    }
+
+    return v;
+}
+
 /* Called from main context */
 void pa_sink_input_set_mute(pa_sink_input *i, pa_bool_t mute, pa_bool_t save) {
     pa_assert(i);